| Seaham to Lagoa | 1,268.56 mi (2,041.55 km) |
| Seaham to Lagoa | 1,637.25 mi (2,634.90 km) |
| Seaham to Lagos | 1,273.43 mi (2,049.38 km) |
| Seaham to Lamego | 994.31 mi (1,600.18 km) |
| Seaham to Leiria | 1,098.16 mi (1,767.32 km) |
| Seaham to Lisbon | 1,171.39 mi (1,885.17 km) |
| Seaham to Loule | 1,261.99 mi (2,030.97 km) |
| Seaham to Loures | 1,164.44 mi (1,873.99 km) |
| Seaham to Lourinha | 1,139.85 mi (1,834.41 km) |
| Seaham to Lousa | 1,066.21 mi (1,715.89 km) |
| Seaham to Lousada | 987.11 mi (1,588.60 km) |
| Seaham to Macedo de Cavaleiros | 954.02 mi (1,535.35 km) |
| Seaham to Mafamude | 1,004.74 mi (1,616.97 km) |
| Seaham to Mafra | 1,159.71 mi (1,866.38 km) |
| Seaham to Maia | 997.13 mi (1,604.73 km) |
